Home / 318,618.24-477,938.56-108,228.80

Finding the Fourth Proportional to 318,618.24, 477,938.56 and 108,228.80

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Solution

The fourth proportional to 318,618.24, 477,938.56 and 108,228.80 is: 162,347.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,618.24 : 477,938.56 = 108,228.80 : x
  2. Step 2: Convert to fraction form
    318,618.24/477,938.56 = 108,228.80/x
  3. Step 3: Cross multiply
    318,618.24x = 477,938.56 × 108,228.80
  4. Step 4: Simplify right side
    318,618.24x = 51,726,716,822.53
  5. Step 5: Solve for x
    x = 51,726,716,822.53/318,618.24
  6. Step 6: Final answer
    x = 162,347.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.